MULTI-SCALE TWO-PHASE WAVE-STRUCTURE INTERACTION USING ADAPTIVE SPH COUPLED WITH QALE-FEM

Lead Research Organisation: City, University of London
Department Name: Sch of Engineering and Mathematical Sci

Abstract

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Publications

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Wang J. (2015) An improved technique to generate rogue waves in random sea in CMES - Computer Modeling in Engineering and Sciences

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Xu G. (2015) Modified SFDI for fully nonlinear wave simulation in CMES - Computer Modeling in Engineering and Sciences

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Yang L (2018) One-fluid formulation for fluid-structure interaction with free surface in Computer Methods in Applied Mechanics and Engineering

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Zhou Y (2016) MLPG_R method for modelling 2D flows of two immiscible fluids in International Journal for Numerical Methods in Fluids

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Yang H (2016) Turbulence modelling and role of compressibility on oil spilling from a damaged double hull tank in International Journal for Numerical Methods in Fluids

 
Description 1) A hybrid method was formed by combining the fully nonlinear potential method QALE-FEM with meshless SPH method based on fully viscous formulation. The hybrid method is more efficient to deal with interaction between breaking waves and structures.

2) Develop novel approach for modelling interface to ensure the continuity of pressure and the true discontinuity of pressure gradient across the interface; and new efficient formulation for solving pressure equations, used for a meshless method.

3) Develop the formulas for estimating error of different wave models and for selecting the suitable wave model if the error is specified.
Exploitation Route The hybrid method developed in this way may be used by other engineers to efficiently simulating the wave-structure interaction for various marine engineering applications.

The novel approach for modelling interface and new efficient formulation for solving pressure equations may be employed by other researchers to develop better meshless methods.

The formulas for estimating error of different wave models and for selecting the suitable wave model may be useful for engineers to analyse nonlinear wave dynamic problems in a phase-resolved way.
Sectors Energy

Environment

Transport